Alright, let's work through 2523 times 2039 step by step
2523 × 2039 = 2039 × (2523)
+ 2039 × 3 giving us 6117
+ 2039 × 20 what gives us 40780
+ 2039 × 500 giving us 1019500
+ 2039 × 2000 producing 4078000

= 5144397
